CN105064266A - Pneumatic fine sand sludge removing device based on river water energy - Google Patents
Pneumatic fine sand sludge removing device based on river water energy Download PDFInfo
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- CN105064266A CN105064266A CN201510449281.3A CN201510449281A CN105064266A CN 105064266 A CN105064266 A CN 105064266A CN 201510449281 A CN201510449281 A CN 201510449281A CN 105064266 A CN105064266 A CN 105064266A
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
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Abstract
The invention discloses a pneumatic fine sand sludge removing device based on river water energy. The pneumatic fine sand sludge removing device comprises a propeller, a metal shell, a fixing device, a transmission mechanism, an inflation cylinder, a T-shaped gas conveying pipeline, a shell, water collectors, a gas collection bag and a sand blowing pipeline. The shell is in a capsule shape. The metal shell is arranged in the middle of the surface of the shell. The two semispherical water collectors are arranged at the two ends of the shell. The transmission mechanism, an inflation and pressurization part and the gas collection bag are arranged in the shell. The kinetic energy of river flow is utilized and converted into atmospheric pressure, and a silted river channel is dredged through high-pressure gas. The pneumatic fine sand sludge removing device can flexibly move in the river channel and is high in utilization efficiency and adaptability. The pneumatic fine sand sludge removing device is wide in application range and is little influenced by external conditions. The method for conducting dredging through the high-pressure gas is adopted, the effect is more obvious compared with a traditional sand blowing method, and influences on the river channel are small. A pressure sensing device is arranged, and therefore when the internal gas pressure intensity is smaller than a limit value, the pneumatic fine sand sludge removing device can automatically float upward, and the labor cost is reduced.
Description
Technical field
The invention belongs to mud cleaning field, be specifically related to the pneumatic scavenge unit of fine sand sludge based on river water energy.
Background technology
For promoting the steady growth continuously and healthily of national economy, the development strategy that State Council proposes " rely on golden waterway, build Yangtze River Zone ", brings great opportunity to China's inland water transport career development.Along with the development of inland water transport cause and the increasing of ship type yardstick, the requirement of dimensions of the channel is also improved day by day.Though the construction of Three Gorges Projects makes waterway classification significantly promote, for larger-sized vessel creates condition, disappearing, section, local, phase Fluctuating Backwater Area still there will be water depth deficiency, and boats and ships cannot the situation of normal pass.This is mainly because reservoir filling changes the natural equilibrium condition that Upper Yangtze River current, silt and bed phase mutual effect for a long time formed, in " flood become silted up withered punching " before retaining, year, Sedimentation rule in a basic balance is broken, cause silt cumulative bad to deposit, need could recover coastal line after reservoir runs the long period.In section, Fluctuating Backwater Area, also can there is natural river and reservoir dual state every year, due to the alluvial of silt cumulative bad, riverbed is raised to some extent, the phase part section that disappears by there will be fairway depth, navigating widely can not meet the requirement of boats and ships normal pass and hinder boat.It is optimize reservoir operation that the major measure of solution Sediment Siltation to influence to channel comprises following three kinds: one, and two is carry out sediment control by engineering measure, and three is channel maintenance dredging measures.But first method reservoir operation involves a wide range of knowledge, rational Reservoir Operation Scheme also needs to face problems; Second method Three Gorges Reservoir is still short for running time, and the engineering measure taked also needs to proceed stream measurement and deep analysis and research; The third method mainly realizes with dredger, but the cost of every subjob is very large with the eco-environmental impact brought.For these problems, the people such as Luo Zhaosen work out a kind of new sand surfing sediment transport method " powered desilting method " recently: be fixed on a certain section, the mode of gas is carried to strengthen flow turbulence by the external world in a large number to river course, thus reach dredging effect, but which manufacturing process, operational management cost is higher, and there is immovable drawback.
In the middle and upper reaches river course in the Changjiang river, owing to having built a lot of hydraulic structures, this has made river channel sedimentation become more serious, but also makes the continuous refinement of mud particle diameter simultaneously.Research finds, in Three Gorges Reservoir Fluctuating Backwater Area, the particle diameter of the mud of the overwhelming majority is all less than 0.1mm.The mode of digging sand is adopted to dredge river course with the manpower and materials of its at substantial, not as reducing the initial velocity of riverbed bottom sludge, make silt under less water velocity from the more shallow regional movement of the depth of water to the darker region of the depth of water, the object of local desilting can be reached like this, dynamic adjustment riverbed again, increase low water season effective flow width, thus reach the effect improving navigation channel.
From knowledge of hydraulics, flow rate of water flow roughly exponentially distributes along vertical line, and surface velocity is large, bottom velocity is little, thus can utilize the gas of certain flow rate that riverbed silt is raised up to a certain height, when flow rate of water flow is greater than sediment moving incipient velocity, silt can start from shoal and defeatedly moves to downstream deep trouth.
For reducing energy loss, the kinetic energy of current can be utilized to provide energy for whole device.By the impact of current, carrying screws rotates, and by a series of transmission device, drives the work of inflator pump litter.In conjunction with the operating principle of inflator pump, air is compressed, air storage is similar to inside the rubber pneumatic bag of doughnut to one, for pneumatic blowing sand provides required gas.Simultaneously by a stainless steel casing parcel internal construction, water collector is installed on shell both sides, is provided with stack below.Water collector is provided with drainage valve, barometric surveying table is installed in air bag, by changing the deadweight of whole device toward water collector water filling and the draining on both sides, realize it and sink and floating.
Summary of the invention
An object of the present invention is for solving a difficult problem of the prior art, provide a kind of effective, cost low based on river water can the pneumatic scavenge unit of fine sand sludge.
The invention provides the pneumatic scavenge unit of fine sand sludge based on river water energy, comprising: screw, metal shell, fastening devices, transmission mechanism, inflator pump, T-shaped biography feed channel, shell, water collector, gas collection capsule and pipeline of blowing sand; Described shell is capsule shape; Described metal shell is provided with in the middle part of described case surface; Described shell two ends are provided with water collector described in two hemisphericals; The described fastening devices that described metal shell connecting surface is bending; Described enclosure is located at by described transmission mechanism, inflating pressure parts and gas collection capsule;
Described T-shaped biography feed channel horizontal pipe two ends connect one group of mechanism connected successively by inflator pump, transmission mechanism and screw respectively; The vertical pipe of described T-shaped biography feed channel connects described gas collection capsule by a pressure meter;
Described transmission mechanism comprises: screw connects gear, bearing and discoid power transmission shaft;
Described discoid power transmission shaft comprises a disk and the disk connecting rod outstanding from described circle disk center side, and described disk connecting rod top is provided with travelling gear, and described disk opposite side is fixed with lever, and it is hollow structure that described lever exceeds described disk one end;
Described bearing two ends are equipped with travelling gear, and wherein one end connects described screw and connects gear, and the other end connects described disk connecting rod;
Described lever exceeds the litter that disk one end cavity is connected with inflator pump; The described inflator pump other end connects described T-shaped biography feed channel;
Described outer casing bottom is located at by described pipeline of blowing sand; And stretch into described shell by a conduit and connect described gas collection capsule.
Further, described propeller blade diameter is 1.5m.
Further, described enclosure is equipped with pressure inductor, can monitor the air pressure change of gas collection capsule at any time, be controlled the duty of water receiver by pressure inductor.
Further, described in pipeline of blowing sand be made up of pvc pipe material, top comprises two main desilting pipes arranged in X shape; Described main desilting pipe is evenly provided with some tubules.
Beneficial effect of the present invention is, the pneumatic scavenge unit of fine sand sludge based on river water energy provided by the invention directly utilizes current as energy source.Utilize the kinetic energy of streamflow, and by kinetic transformation air pressure energy, recycling gases at high pressure carry out desilting, to reach the object of desilting to alluvial river course.Flexibly mobile in river course, there is not idle waste, utilization ratio is high, strong adaptability.This device is applicable to the alluvial situation in multiple river course, and affects little by external condition.Have employed the method for gases at high pressure desilting, and this method more traditional sand surfing mode effect is more obvious, and river course is impacted less.This device has pressure sensitive device, and when internal gas pressure is reduced to limit value, it can float automatically, reduces cost of labor.
Accompanying drawing explanation
Figure 1 shows that the orthogonal view of the pneumatic scavenge unit of fine sand sludge that the present invention is based on river water energy.
Figure 2 shows that the lateral view of the pneumatic scavenge unit of fine sand sludge that the present invention is based on river water energy.
Figure 3 shows that in the present invention the front view of pipeline of blowing sand.
Figure 4 shows that the front view of inflator pump in the present invention.
Figure 5 shows that the front view of the lever in the present invention.
Figure 6 shows that the front view of screw in the present invention.
Figure 7 shows that the lateral view of air bag in the present invention.
Figure 8 shows that the front view of discoid power transmission shaft in the present invention.
Figure 9 shows that the lateral view of middle (center) bearing of the present invention.
Figure 10 shows that the front view of bearing of the present invention.
Detailed description of the invention
Hereafter will describe the specific embodiment of the invention in detail in conjunction with concrete accompanying drawing.It should be noted that the combination of technical characteristic or the technical characteristic described in following embodiment should not be considered to isolated, they can mutually be combined thus be reached better technique effect.
As shown in Figures 1 to 10, the pneumatic scavenge unit of fine sand sludge based on river water energy provided by the invention, comprising: screw 1, fastening devices, transmission mechanism, inflator pump 7, T-shaped biography feed channel 6, shell, water collector 11, gas collection capsule 2 and pipeline 3 of blowing sand; Shell is capsule shape; Metal shell 4 is provided with in the middle part of case surface; Shell two ends are provided with two hemispherical water collectors 11; The fastening devices that metal shell 4 connecting surface is bending; Enclosure is located at by transmission mechanism, inflating pressure parts and gas collection capsule 2; Gas collection capsule 2 is O type;
T-shaped biography feed channel 6 horizontal pipe two ends connect one group of mechanism connected successively by inflator pump 7, transmission mechanism and screw 1 respectively; The vertical pipe of T-shaped biography feed channel 6 connects gas collection capsule 2 by a pressure meter 5;
Transmission mechanism comprises: lever 8, bearing 10 and discoid power transmission shaft 9;
Discoid power transmission shaft 9 comprises a disk and the disk connecting rod outstanding from circle disk center side, and disk connecting rod top is provided with travelling gear, and disk opposite side is fixed with lever 8, and it is hollow structure that lever 8 exceeds disk one end;
Bearing 10 two ends are equipped with travelling gear, and wherein one end connects screw 1 and connects screw connection gear, other end clutch disk connecting rod;
Lever 8 exceeds the litter that disk one end cavity is connected with inflator pump 7; Inflator pump 7 other end connecting T-shaped passes feed channel 6;
Outer casing bottom is located at by pipeline 3 of blowing sand; And stretch into shell connection gas collection capsule 2 by a conduit.
Further, screw 1 blade diameter is 1.5m.
Further, enclosure is equipped with pressure inductor, can monitor the air pressure change of gas collection capsule 2 at any time, be carried out the duty of domination set hydrophone 11 by pressure inductor.
Further, pneumatic blowing sand tube road 3 is made up of pvc pipe material, and top comprises two main desilting pipes arranged in X shape; Main desilting pipe is evenly provided with some tubules; Omnibearingly can carry out sand surfing to a certain region; Simultaneously tubule can 180 ° rotate the angles changed between thin pipes and mud, rough sand can be reached like this and slide along riverbed, the effect that fine sand turbulent fluctuation is floated.
Embodiment
The first step: be fixed on the deep trouth section that the depth of water is comparatively dark and current are larger when whole device is not blown sand, allows water impact screw 1 blade, is done work, gas compression to 2 li, gas collection capsule, water can be converted into gas pressure energy by transmission device to inflator pump 7.
Second step: when screw 1 is after moment loading is issued to balance, closes the pressure meter 5 of screw 1 and gas collection capsule 2.Handle assembly is transported to again needs the waters of desilting to position.
3rd step: start water storage water trap, open pressure meter 5 pairs of water collectors 11 and pour water, increase the deadweight of whole device, realizes it, arrives the mud place of specifying.
4th step: after whole device sinks to river bed, is opened blow sand pipeline 3 and the valve of gas collection capsule 2, is blown, carry out desilting operation by the high velocity air of blowing sand in pipeline 3 to bed-silt.When pressure inductor senses that in gas collection capsule 2, pressure is not enough to produce the air-flow needed for sand surfing, open water collector 11 and the pipeline of gas collection capsule 2, carry out draining by water discharging valve, whole device is floated.
5th step: after a sand surfing, runs to energy storage again that screw 1 is carried out in appointed place after whole device floats, and for next sand surfing is prepared, so just realizes a complete circulation sand surfing process.
The pneumatic scavenge unit of fine sand sludge based on river water energy provided by the invention directly utilizes current as energy source.Utilize the kinetic energy of streamflow, and by kinetic transformation air pressure energy, recycling gases at high pressure carry out desilting, to reach the object of desilting to alluvial river course.Flexibly mobile in river course, there is not idle waste, utilization ratio is high, strong adaptability.This device is applicable to the alluvial situation in multiple river course, and affects little by external condition.Have employed the method for gases at high pressure desilting, and this method more traditional sand surfing mode effect is more obvious, and river course is impacted less.This device has pressure sensitive device, and when internal gas pressure is reduced to limit value, it can float automatically, reduces cost of labor.
Although give some embodiments of the present invention, it will be understood by those of skill in the art that without departing from the spirit of the invention herein, can change embodiment herein.Above-described embodiment is exemplary, should using embodiment herein as the restriction of interest field of the present invention.
Claims (4)
1., based on the pneumatic scavenge unit of fine sand sludge of river water energy, it is characterized in that, comprising: screw, metal shell, fastening devices, transmission mechanism, inflator pump, T-shaped biography feed channel, shell, water collector, gas collection capsule and pipeline of blowing sand; Described shell is capsule shape; Described metal shell is provided with in the middle part of described case surface; Described shell two ends are provided with water collector described in two hemisphericals; The described fastening devices that described metal shell connecting surface is bending; Described enclosure is located at by described transmission mechanism, inflating pressure parts and gas collection capsule;
Described T-shaped biography feed channel horizontal pipe two ends connect one group of mechanism connected successively by described inflator pump, transmission mechanism and screw respectively; The vertical pipe of described T-shaped biography feed channel connects described gas collection capsule by a pressure meter;
Described transmission mechanism comprises: lever, bearing and discoid power transmission shaft;
Described discoid power transmission shaft comprises a disk and the disk connecting rod outstanding from described circle disk center side, and described disk connecting rod top is provided with travelling gear, and described disk opposite side is fixed with described lever, and it is hollow structure that described lever exceeds described disk one end;
Described bearing two ends are equipped with travelling gear, and wherein one end connects screw and connects gear, and the other end connects described disk connecting rod;
Described lever exceeds the litter that described disk one end cavity is connected with described inflator pump; The described inflator pump other end connects described T-shaped biography feed channel;
Described outer casing bottom is located at by described pipeline of blowing sand; And stretch into described shell by a conduit and connect described gas collection capsule.
2., as claimed in claim 1 based on the pneumatic scavenge unit of fine sand sludge of river water energy, it is characterized in that, described propeller blade diameter is 1.5m.
3. as claimed in claim 1 based on the pneumatic scavenge unit of fine sand sludge of river water energy, it is characterized in that, described enclosure is equipped with pressure inductor, can monitor the air pressure change of described gas collection capsule at any time, is controlled the duty of described water collector by described pressure inductor.
4. as claimed in claim 1 based on river water can the pneumatic scavenge unit of fine sand sludge, it is characterized in that, described in pipeline of blowing sand be made up of pvc pipe material, top comprises two main desilting pipes arranged in X shape; Described main desilting pipe is evenly provided with some tubules.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510449281.3A CN105064266B (en) | 2015-07-28 | 2015-07-28 | Fine sand sludge pneumatic removing device based on river water energy |
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| CN201510449281.3A CN105064266B (en) | 2015-07-28 | 2015-07-28 | Fine sand sludge pneumatic removing device based on river water energy |
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| CN105064266B CN105064266B (en) | 2017-01-04 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106087855A (en) * | 2016-06-16 | 2016-11-09 | 上海交通大学 | A kind of fluidisation based on silt rheology promotees flushing device |
| CN108487355A (en) * | 2018-04-08 | 2018-09-04 | 湖南贝克特环保科技有限公司 | A kind of solid waste for sewage disposal expels device |
| CN110552395A (en) * | 2019-09-11 | 2019-12-10 | 水利部交通运输部国家能源局南京水利科学研究院 | deep water sediment rapid removal system and method based on pneumatic sediment removal |
| CN111455935A (en) * | 2020-03-17 | 2020-07-28 | 中北大学 | Self-flow channel water flow sundries-removing anti-winding device |
| CN112302086A (en) * | 2020-11-23 | 2021-02-02 | 王红艳 | River silt cleaning device |
| CN112627103A (en) * | 2020-10-27 | 2021-04-09 | 苏州贝基电子科技有限公司 | Underwater plowing device for river regulation and restoration |
| CN113309161A (en) * | 2021-04-26 | 2021-08-27 | 韩欣洋 | City river desilting car |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2372520A (en) * | 2001-02-26 | 2002-08-28 | Michael John Wilkinson | Removal of silt from a fluid course, using a venturi pump |
| KR100674358B1 (en) * | 2006-10-14 | 2007-01-30 | 주식회사 삼안 | Structure for sorting sludge sewerage box |
| CN202324179U (en) * | 2011-12-01 | 2012-07-11 | 上海市城市建设设计研究总院 | Automatic dredging system of underground regulation pipe culvert |
| CN102912761A (en) * | 2012-11-06 | 2013-02-06 | 陈伟 | River training method through wind |
| CN104164899A (en) * | 2014-08-15 | 2014-11-26 | 浙江水利水电学院 | Movable energy storage sludge flushing device and method |
| CN204139227U (en) * | 2014-09-11 | 2015-02-04 | 彝良驰宏矿业有限公司 | Gas mixing pumping drainage type mine sump desilting machine |
| CN204940392U (en) * | 2015-07-28 | 2016-01-06 | 重庆交通大学 | One can sink and emerge type water energy powered desilting device automatically |
-
2015
- 2015-07-28 CN CN201510449281.3A patent/CN105064266B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2372520A (en) * | 2001-02-26 | 2002-08-28 | Michael John Wilkinson | Removal of silt from a fluid course, using a venturi pump |
| KR100674358B1 (en) * | 2006-10-14 | 2007-01-30 | 주식회사 삼안 | Structure for sorting sludge sewerage box |
| CN202324179U (en) * | 2011-12-01 | 2012-07-11 | 上海市城市建设设计研究总院 | Automatic dredging system of underground regulation pipe culvert |
| CN102912761A (en) * | 2012-11-06 | 2013-02-06 | 陈伟 | River training method through wind |
| CN104164899A (en) * | 2014-08-15 | 2014-11-26 | 浙江水利水电学院 | Movable energy storage sludge flushing device and method |
| CN204139227U (en) * | 2014-09-11 | 2015-02-04 | 彝良驰宏矿业有限公司 | Gas mixing pumping drainage type mine sump desilting machine |
| CN204940392U (en) * | 2015-07-28 | 2016-01-06 | 重庆交通大学 | One can sink and emerge type water energy powered desilting device automatically |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106087855A (en) * | 2016-06-16 | 2016-11-09 | 上海交通大学 | A kind of fluidisation based on silt rheology promotees flushing device |
| CN106087855B (en) * | 2016-06-16 | 2018-08-03 | 上海交通大学 | A kind of fluidisation rush flushing device based on silt rheology |
| CN108487355A (en) * | 2018-04-08 | 2018-09-04 | 湖南贝克特环保科技有限公司 | A kind of solid waste for sewage disposal expels device |
| CN110552395A (en) * | 2019-09-11 | 2019-12-10 | 水利部交通运输部国家能源局南京水利科学研究院 | deep water sediment rapid removal system and method based on pneumatic sediment removal |
| CN110552395B (en) * | 2019-09-11 | 2021-12-21 | 水利部交通运输部国家能源局南京水利科学研究院 | Deep water sediment rapid removal system and method based on pneumatic sediment removal |
| CN111455935A (en) * | 2020-03-17 | 2020-07-28 | 中北大学 | Self-flow channel water flow sundries-removing anti-winding device |
| CN112627103A (en) * | 2020-10-27 | 2021-04-09 | 苏州贝基电子科技有限公司 | Underwater plowing device for river regulation and restoration |
| CN112302086A (en) * | 2020-11-23 | 2021-02-02 | 王红艳 | River silt cleaning device |
| CN113309161A (en) * | 2021-04-26 | 2021-08-27 | 韩欣洋 | City river desilting car |
| CN113309161B (en) * | 2021-04-26 | 2022-12-06 | 江苏源泉泵业股份有限公司 | City river desilting car |
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